Geoege a



' (No Model.)

. R 8 w m m H 3 e V n 0 u N J d Z w n .w b a P w E a w I y s F :m W Z aw00 s ,c A 5 E w E m l E J 5 9 x E a E w N m 2 g n E I M H W UNITEDSTATES PATENT OFFICE.

GEORGE A. PORTER, OF SYRACUSE, NEW YORK.

POWER MOVEMENT FOR PRESSES.

SPECIFICATION forming part of Letters Patent No. 243,399, dated June-28, 1881.

Application filed May 14, 1881.

To all whom it may concern Be it known that I, GEORGE A. PORTER, ofSyracuse, in the county of Onondaga, in the State of New York, haveinvented new and useful Improvements in Power Movement for Presses forthe Purpose of Pressing Cotton, Hay, &c., of which the following, takenin connection with the accompanying drawings, is a full, clear, andexact description.

This invention relates to improved means of transmitting power to thescrew of a press; and it consists, essentially, in the combination, withsaid screw, of anut provided with a wormgear, a worm-shaft engaging saidgear and provided with a friction-wheel and a belt-pulley, thedriving-shaft mounted in a sliding box and provided with afriction-wheel and abeltpulley, a belt connecting said pulleys, and alever or other suitable device connected with the sliding box for thepurpose of shifting the driving-shaft, and by the resultant change inthe position of its friction-wheel and belt-pulley in relation to thoseof the worm-shaft reversing the motion of the screw, all as hereinaftermore fully described.

In the annexed drawings, Figure l is a front view of a power-pressprovided with my improvements. Fig. 2 is a side view of same with apiece of the frame broken away to better illustrate the connection ofthe screw with the nut which operates it. Fig. 3 is a view of theactuating mechanism of the press, taken on the line m w in Fig. 1; Fig.4, a plan view taken on line y y; and Fig. 5 is a vertical section ofthe nut, showing the detail construction of same and its connection withthe screw, pressframe, and worm-shaft.

Similar letters of reference indicate corresponding parts.

A represents the hopper or case in which to place the hay, cotton, orother substance to be pressed, said case being supported by a suitableupright frame, B, adapted to firmly hold the cover on the case. Thebottom of the case is movable and constitutes the follower of the press.

S denotes the press-screw, having its upper end fixed stationary in asocket or step, 8, properly secured to the follower.

N represents a nut fitted to the screw S, and

(No model.)

having a cylindrical body, a, by which it is journaled in a box, on,secured to cross-beams E E of the press-frame, as best seen in Fig. 5 ofthe drawings. One end of the nut N is provided with a worm wheel orgear, a, which is rigidly secured or cast thereon. The wormwheel'a isoperated by a worm-shaft, b, journaled in suitable bearings, f f, on thepressframe, and having fixed to its extremity a friction-wheel, c, and abelt-pulley, d.

D denotes the driving-shaft, arranged parallel to the worm-shaft, andprovided at one end with a driving-pulley, h, and at the opposite endwith a friction-wheel, c, and a belt-pulley, e, which latter isconnected with the pulley d of the worm-shaft by a belt, '1'. That endof the driving-shaft which carries the frictionwheel 0 and belt-pulley eaforesaid is mounted in a box, c, which slides in guides a secured tothe press-frame, as shown in Figs. 3 and 4 of the drawings. By means ofa pivoted lever, Z, connected with the box '11, the latter can be movedback and forth in the guides to, thereby swinging the end of the shaftmounted therein toward and from the worm-shaft.

The two friction-wheels c and c are of such diameters as to cause themto be brought in contact with each other by the approach of thedriving-shaft, and the belt 1" is of such a length as to allow thedriving-shaft suflicient play to disengage the two friction-wheelsaforesaid and simultaneously tighten the belt. Since the direct contactof the two friction-wheels causes said wheels to rotate in contrarydirections, while the belt-connection drives the two 8 5 pulleys in onedirection, the shifting of the drivin g-shaft and resultant ch an ge inthe transmission of the motion, as before described, reverses the motionof the nut N and screw S.

The friction-wheels are used for imparting a go pulley, and the lever I,connected with the slidin g box 0), all combined and operatingsubstantially as shown and set forth.

In testimony whereof I have hereunto signed my name and affixed my seal,in the presence of two attesting witnesses, at Syracuse, in the countyof Onondaga, in the State of New York, this 10th day of May, 1881.

GEORGE A. PORTER.

Witnesses:

D. A. BONTA, H. H. HOYT.

